#include <stdio.h>
#define MAXLINE 10    /* maximum input line size */

int getline(char line[], int maxline);
void copy(char to[], char from[]);

/* to avoid problems with getline (from the GNU C Library),
   compile using the -std=c99 flag */

/* print length of longest line and as much text as possible,
   limited by MAXLINE */
int main()
{
    int len;            /* current line length */
    int max;            /* maximum length seen so far */
    char line[MAXLINE];     /* current input line */
    char longest[MAXLINE];  /* longest line saved here */
    
    max = 0;
    while((len = getline(line, MAXLINE)) > 0)
        if(len > max){
            max = len;
            copy(longest, line);
        }
    if(max > 0)     /* there was a line */
        printf("%d\n%s\n", max, longest);
    return 0;
}

/* getline:  read a line into s, return length */
int getline(char s[], int lim)
{
    int c, i, j;

    for(i=j=0; (c=getchar())!=EOF && c!='\n'; ++j){
	if(i<lim-1){
	    s[i] = c;
	    ++i;
	}
    }
    if(c == '\n'){
        s[i] = c;
        ++i;
    }
    s[i] = '\0';
    return j;
}

/* copy:  copy 'from' into 'to'; assume to is big enough */
void copy(char to[], char from[])
{
    int i;
    
    i = 0;
    while((to[i] = from[i]) != '\0')
        ++i;
}
